We want to develop a sustainable meat flock, and have narrowed down our list to Buckeyes, Dorkings, and Jersey Giants. We want to raise all three and see which we like best. We get below freezing in the winter, we can provide heat lamps and such but do these breeds tolerate close confinement reasonably well during the winter months and can they handle the cold? Also can anybody suggest some hatcheries? Know of any that emphasize size and/or broodiness?